Dr. Voth is a specialist in Internal Medicine, Pain Management, and Addiction Medicine. He serves as the President and Chairman of the Board of the International Academy on the Science and Impact of Cannabis (IASIC). Dr. Voth is a pioneer in the appropriate prescribing of controlled medications and is recognized as an international authority on drug use, drug policy-related issues, pain management, and appropriate prescribing practices.

He also serves as an advisor on alcohol and drug abuse issues to the Kansas State Board of Healing Arts, is a former member of the National Advisory Committee for the Center for Substance Abuse Treatment of HHS, and is a Clinical Professor of Internal Medicine at the University of Kansas School of Medicine, and was formerly Vice-President of Primary Care at Stormont-Vail HealthCare in Topeka, Kansas

Dr. Voth has advised Reagan, Clinton, both Bush, and Obama administrations, and has advised or testified for numerous Congressional offices on drug related issues. He has appeared on or consulted to, numerous other radio media, and has been quoted by numerous international print media.